Fix double free in opal_common_ucx_wpool_init

Coverity CID 1469201

Signed-off-by: David Wootton <dwootton@us.ibm.com>

Author: David Wootton

opal/mca/common/ucx/common_ucx_wpool.c

@@ -192,7 +192,6 @@ OPAL_DECLSPEC int opal_common_ucx_wpool_init(opal_common_ucx_wpool_t *wpool)
     free(wpool->recv_waddr);
 err_get_addr:
     OBJ_RELEASE(winfo);
-    OBJ_RELEASE(wpool->dflt_winfo);
     wpool->dflt_winfo = NULL;
 err_worker_create:
     OBJ_DESTRUCT(&wpool->idle_workers);